VoidFill — See What's Eating Your Disk

VoidFill is a fast, lightweight disk usage visualizer for Windows. It scans any folder and shows you exactly where your storage has gone — files and folders ranked by size, with a visual size bar so the biggest offenders stand out instantly.

No bloat, no subscriptions, no telemetry. Just scan, find, and free up space.

Scan any folder and see a full breakdown of files and subfolders by size

Drill down through the tree to find exactly what's taking up space

Move files and folders directly to the Recycle Bin from inside the app

Reveal any item in Windows Explorer with one click

If VoidFill saved you time hunting down disk hogs, a coffee keeps it going. Every contribution helps me maintain and improve the app. Thank you! ☕

OS Windows 10 or Windows 11 (64-bit)

Architecture x64

RAM 50 MB minimum

Disk space 60 MB

Runtime None — .NET is bundled

Permissions Standard user (no admin required to scan; admin needed to install)

Display 1280 × 720 or higherng with this extensive guide. Available in PDF format.